I m 40 year old and i usually suffer from gastric problems whenever i eat some oily or spicy things.plz tell me what can i do to recover(m)60 kg 5'4"?

Stop eating that.: You need to stop eating oily and spicy things. Or at least cut down on that a lot. It's expected that many people won't tolerate such things. You also likely have gastroesophageal reflux disease so you need to take prilosec, zantac, (ranitidine) or a similar agent. You also need endoscopy surveillance every few years for esophageal cancer.